C#泛型:如果T是返回类型，它也可以是void吗?如何将这些接口组合在一起? [英] C# Generics: If T is a return type, can it also be void? How can I combine these interfaces together?

问题描述

我有以下接口使用回调返回 T 类型的泛型参数...

I have the following interface that returns the generic parameter of type T using a callback...

public interface IDoWork<T>
{
    T DoWork();
}

但是我也有以下接口，但它不会调用回调，因为它返回 void.

however I also have the following interface as well, but it won't invoke a callback since it returns void.

public interface IDoWork
{
    void DoWork();
}

我可以将这两个接口结合起来并使用运行时逻辑来确定差异吗?我该怎么做?

Can I combine these two interfaces and use runtime logic to determine the difference? How can I do that?

推荐答案

很遗憾，它们不能合并.

Unfortunately, they can't be combined.

您可以在框架中看到这一点 - 这就是为什么有一个单独的 Task 和 Task 类，例如.

You can see this in the framework - that's why there is a separate Task and Task<T> class, for example.

话虽如此，您通常可以通过使用 IDoWork